2021 Jamis Bicycles Hijack Base 15
Build
650B/27.5 in × 2.25 in
Insights
Average stack and reach vs trend of hardtail cross-country mtb bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 608mm |
| Reach | 410mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, Unknown | 381mm |
| Top Tube Length, Effective/Horizontal Unknown | 585mm |
| Top Tube Slope | 25.2deg |
| Head Tube Angle | 67.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 119.7mm |
| Bottom Bracket Drop | 44mm |
| Bottom Bracket Height | 305.2mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 422.7mm |
| Front-Center | 690.7mm |
| Front-Center Horizontal | 689.3mm |
| Wheelbase | 1112mm |
| Fork Offset/Rake | 42mm |
| Fork Length, Unknown | 490mm |
| Trail | 99.2mm very high |
| Mechanical Trail | 91.6mm |
| Wheel Flop | 35.1mm |
| Standover Height | 749mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 171.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 135.2mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 698.3mm |
| Bike Length with Tires | 1810.3mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | 20% |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 155 cm to 165 cm |
Source:https://www.jamisbikes.com/new_pdf/19_hijacka1.pdf